Spring clamp for telephone indexes



Dec. 26, 1922. 1,440,038. D. UMANOFF.

SPRING CLAMP FOR TELEPHONE INDEXES.

FILED NOV. 3, 1919.

@51 atta ns-1 Patented Dec. 26, 1922.,

ia se rrics.

DAVID UMANOFF, 013 NEW] YORK, N. Y.

SPRING CLAMP FOB TELEPHONE INDEXES.

Application filed November 3, 1919. Serial No. 335,552

To all whom/2'15 may concern:

Be 1t known that l, DAVID UarAnorF, citizen of the United States, I'GSlCllIlgfit New York in the count 1 of New York and State and has for its main object to provide a device which is simple in construction and operation, and inexpensive in cost oi manutlacture.

.sincther object of the invention is to pro ride such. a spring clamp composed of one piece of resilient material such as metal wire, hcnt so as to provide a pair oi resilient jaws and an eye-lilie projection tor securing: the clamp to a siqiport.

.finother object oi the i: ntion is to provide a clamp by means i which an index may he removahly secured to a support. such as. for instance, the mouthpiece oi a telephone.

'lhe above and other ohjccts will become apparent in the description below, in whicl like characters oi reterenre rol er to ill-16m named parts on the accompanying drawing. The drawing illustrates the clamp applied to a telephone index, the SZLZZQ heir used to retain the index in position on and to prevent its accidental, falling: oil from the mouth-piece oi? the telephone or sliding along its essentially conical surface.

Referring briefly to the drawing, 1 illustrates, in a front elevational view, the clamp applied to the mouthpiece of a teleihone. l ig. Q- is a side elevational view of the same.

Referring to the drawings, the numerals l and indicate the arms ofthe clamp, which is constructed of resilient material by lKllillllgJ, into the shape shown, the vclamp arms heing suited to tit about the outer portion of the mouth piece 7. .i single coil :3 is formed in the top of the clamp which is adapted to pass through a hole l of the index hacking plate or hase 9, when the clamp arms 1 and 2- are outwardly. swung. thus reducing the diameter of the coil Thereupon the coil is inserted through the hole 4.- and the arms are allowed to approacl'i each other enlarging the diameter o'l the coil 3 and causing the same to be securely retained on the back oi? the base plate 9. i

The Free ends of the arms 1 and 2 are proviled with loops 5 and 6 adapted for (DiliilJ between the face of the plate 9 and 0 the hack of the pad 8, and said pad is fixed to the plate 9 by means of eyelets 10,10- cated at the corners only, whereby the pad 8 and plate 9 are sufiiciently spaced apart to allow :lor s *inging movement of the arms i and 2.

lVhen the device is mounted on the mouthpiece 7, the arms 1 and 2 are slightly separated or swung apart to permit the clamp to pass over its front and then spring inwardly, thus retaining the clamp on the mouthpiece, the plate 9 being provided with a hole 9, which is of greater diameter than the mouthpiece.

Having thus described my invention, what l claim and desire to secure .by Letters Patent is as follows:

.l. 111 a iflevice of the character described, an. index plate having a relativelysanall aperture througl'i its upper part and a larger aperture adjacent thereto, and a clamp of resilient material comprising two arms and a normally expanded connecting coil which is extended through said small aperture, said arms adapted to clasp atelephone mouth piece.

:2. in a device of the character descrlloed, an index plate having a relatively small aperture through its upper part and a larger a erture ad'acent thereto and a clam) of resilient material comprising two arms and a normally expanded connecting COll which is extended through said small aperture, said arms adapted to clasp a telephone mouthpiece, and a. pad, and means for conne ti up the same to said plate, whereby the is sulliciently spaced irom the pad to allow for swinging movement oi the clamp arms.

DAVID UMANUFF.

In testimony whereof I affix my si ature. 

